What is xenophobia?
The fear of unfamiliar (foreign) things.
If you look this word up in a dictionary, you will find the following definitions of the phobia: fear towards strangers and fear of everything unfamiliar.
Some phobias lead to adverse implications...
As you might have already guessed, the word is of Greek origin. It was combined of two words: xenos, meaning "stranger", and phobos, meaning "fear".